DR. WILLIAM DAVID SCHNAPP (M.D.) – Neurology Physician, NPI 1699938795

DR. WILLIAM DAVID SCHNAPP (M.D.) is a healthcare provider. based in Marathon, Florida. specializing in INTERVENTIONAL PAIN MANAGEMENT, NEUROLOGY. They hold the professional credentials M.D.. They hold a License No. ME113950 (FL). The NPI Number for DR. WILLIAM DAVID SCHNAPP (M.D.) is 1699938795

Main info

Male
Sole Proprietor
19 Years Of Experience
Accepts Medicare Assignment
Name
DR. WILLIAM DAVID SCHNAPP (M.D.)
NPI
1699938795
Phone
(305) 289-6432
Address
3301 Overseas Hwy
Enumeration Date
8 July 2008
Last Update Date
17 March 2018

Doctor Profile

Medical School Name
OTHER
Secondary Phone
3052962212
Graduation Year
2007 (19 years ago)
PAC ID
0648409979
Group Practice PAC ID
6800025131
Professional Enrollment ID
I20140210000523
Address ID
FL330404269KE925XXDRXX300
Telehealth
Yes
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience53
Completeness75
Years active:17State licenses:1Digital endpointsOther names

370 INTERVENTIONAL PAIN MANAGEMENT in FL

Provider Addresses for DR. WILLIAM DAVID SCHNAPP (M.D.)

  • 3301 Overseas Hwy

    Marathon, FL 330502329

    Phone: (305) 289-6432

    Fax: (305) 296-2209

    Type: Location

  • 95360 Overseas Hwy Ste 11

    Key Largo, FL 330372038

    Phone: (305) 296-2212

    Fax: (305) 296-2209

    Type: Location

  • 925, Toppino Drive, Searstown Shopping Center, Key West, Monroe County, Florida, 33040, United States

    KEY WEST, FL 330404269

    Phone: (305) 296-2212

    Fax: (305) 296-2209

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 64 Open Payments records for all available years, with a total value of $12,447.

Total Amount is formed as General ($12,447) + Research ($0) + Ownership ($0) = $12,447.

Last reported payment date: 2024-11-16 • Largest payer in this snapshot: Medtronic, Inc. ($11,350).

Total Amount

$12,447

General + Research + Ownership

Payments

64

Total payment records

General Amount

$12,447

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-11-16

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2014-03-17

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 2 Medicare enrollment records; no due dates published yet.

Enrollment records

2

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20140210000523IInterventional Pain ManagementFLTBD
I20140317001648IInterventional Pain ManagementTNTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
J0585Injection, onabotulinumtoxina, 1 unit5,44513$0
97110Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes1,25469$0
99214Established patient office or other outpatient visit, 30-39 minutes949460$0
J1030Injection, methylprednisolone acetate, 40 mg552263$0
97530Therapy procedure using functional activities42839$0
View full utilization report →

Insurance plans in this area (ZIP 33050)

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Provider's Procedures

DR. WILLIAM DAVID SCHNAPP (M.D.) performs procedures in INTERVENTIONAL PAIN MANAGEMENT. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
INTERVENTIONAL PAIN MANAGEMENTFL64493Injections of lower or sacral spine facet joint using imaging guidance5547

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 6800025131View full group profile
NameSpecialtyState
Pain ManagementFL
Internal MedicineFL
Physical Medicine And RehabilitationFL
Nurse PractitionerFL
Physician AssistantFL
Physician AssistantWI
Physician AssistantTN
Nurse PractitionerFL

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Frequently asked questions

How is DR. WILLIAM DAVID SCHNAPP (M.D.) identified in CMS data?
CMS-hosted NPPES data lists DR. WILLIAM DAVID SCHNAPP (M.D.) with NPI 1699938795.
Is DR. WILLIAM DAVID SCHNAPP (M.D.) listed as active for patients and plans?
The listing shows DR. WILLIAM DAVID SCHNAPP (M.D.) as active in the NPI system.
What taxonomy line describes DR. WILLIAM DAVID SCHNAPP (M.D.)?
For research purposes, treat DR. WILLIAM DAVID SCHNAPP (M.D.) as Neurology Physician in this dataset. Clinical services aligned with this taxonomy classification.
What address line appears for DR. WILLIAM DAVID SCHNAPP (M.D.)?
DR. WILLIAM DAVID SCHNAPP (M.D.)'s geographic hint is Marathon, Florida in our summary view.
Why does DR. WILLIAM DAVID SCHNAPP (M.D.) have multiple addresses?
4 practice locations appear in the available data. Multiple addresses are common for hospital privileges, telehealth, or multi-site groups.

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